420859902579 has 16 divisors (see below), whose sum is σ = 561534459552. Its totient is φ = 280379379968.

The previous prime is 420859902539. The next prime is 420859902583. The reversal of 420859902579 is 975209958024.

It is a cyclic number.

It is not a de Polignac number, because 420859902579 - 2⁷ = 420859902451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420859902509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42795847 + ... + 42805679.

It is an arithmetic number, because the mean of its divisors is an integer number (35095903722).

Almost surely, 2^420859902579 is an apocalyptic number.

420859902579 is a deficient number, since it is larger than the sum of its proper divisors (140674556973).

420859902579 is a wasteful number, since it uses less digits than its factorization.

420859902579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18246.

The product of its (nonzero) digits is 16329600, while the sum is 60.

The spelling of 420859902579 in words is "four hundred twenty billion, eight hundred fifty-nine million, nine hundred two thousand, five hundred seventy-nine".